[Change in optokinetic, postoptokonetic and reverse postoptokinetic nystagmus after bilateral labyrinthectomy].

The frequency of optokinetic, postoptokinetic, and reverse postoptokinetic nystagmi in rabbits sharply decreased while the amplitude remained practically the same, after bilateral labyrinthectomy. This suggests that labyrinthectomy disturbs function of the system for slow tracing movements while the system for fast saccadic movements does not suffer.